What waits in the Dark is a World of Darkness adventure designed for four mortals. It contains information from World of Darkness: Antagonists but that book is not necessary to enjoy this adventure. The adventure is set in a secluded locale (aren't they all) where a studio is filming a movie. Unbeknownst to the film crew the mansion was once owned by a cult called the Gibbering Hand that were trying to summon extra-dimensional beings to earth to lay waste to civilization.